Interactive
Curated OER

My Test Book: Ratios

For Students 5th - 6th
In this online interactive math skills worksheet, learners solve 10 multiple choice math problems regarding ratios. Students may view the correct answers.
Worksheet
Curated OER

Ratios: missing number

For Students 5th - 8th
In this ratios activity, learners find the missing number in each ratio for numbers up to 10. Students complete 7 ratio problems.
Lesson Plan
Curated OER

Using Ratios to Taste the Rainbow

For Teachers 9th - 11th
Students solve problems using ratios and proportion. In this algebra lesson plan, students analyze skittles and their different colors as they apply the properties of ratios and proportions to solve their problems.
Worksheet
Curated OER

Ratio and Proportion 7.1

For Students 5th - 6th
In this calculating ratio and proportion worksheet, students write rations in their simplest form, write in the form 1:n for ratios, and solve word problems. Students solve 4 problems.
Worksheet
Curated OER

Ratio and Proportion 2

For Students 6th
In this evaluating knowledge of ratio and proportion worksheet, 6th graders complete the mental tests simplifying ratios, solving word problems, and converting foreign money. Students solve 24 problems.
Lesson Plan
Curated OER

Comparing Ratios

For Teachers 7th - 10th
Young scholars solve problems using ratio and proportion. For this math comparison lesson, students identify methods used to solve and compare ratio and proportion in the real world. They apply criss cross multiplying to solve their...
Lesson Plan
Curated OER

Using Proportions to Estimate

For Teachers 8th - 10th
Students calculate ratio and proportion. In this unit rates lesson, students estimate using proportions and find their errors in doing so. They calculate unit rates and define the concept of unit rates.
Lesson Plan
Curated OER

Math and the Greek-Golden Proportions

For Teachers 4th
Fourth graders study math and the golden mean. In this math meets Greek history lesson, 4th graders study ratios and proportions in relation to the Greeks. The use of clay is incorporated ino this lesson. 
Lesson Plan
Curated OER

Scale factors: Ratios and Proportions

For Teachers 8th - 11th
Students create building and models using scale factors. In this geometry instructional activity, students apply the properties of ratio and proportion to solve problems. They identify the means and extremes property of cross...
Lesson Plan
Curated OER

Ratio and Proportions

For Teachers 4th - 6th
Students explore the means and extremes of a proportion, the how to make a scale drawing.
Interactive
Curated OER

Ten Multiple-Choice Rate, Ratio, and Proportion Problems

For Students 7th
In this rate, ratio, and proportion activity, 7th graders solve ten multiple-choice problems.  The solutions are provided by clicking on the "show answers" on the bottom of the page.
Worksheet
Curated OER

Equivalent Proportions

For Students 7th - 8th
In this equivalent proportion worksheet, students identify ratios written in three different forms (with a colon, with the word "to" and as a fraction). Students write the ratios as a proportion and then determine their equivalency. ...
Worksheet
Curated OER

Missing Proportions

For Students 7th - 8th
In this missing proportion learning exercise, students solve for a missing variable to create a true statement. The two-step process of cross-multiplication and division may be used to solve given ratios. This one-page learning...
Worksheet
Curated OER

Proportions

For Students 8th
In this proportions worksheet, 8th graders solve and complete 10 different problems that include difficult word based proportions. First, they solve each proportion as described. Then, students write their answer on the line provided for...
Lesson Plan
Curated OER

Ratios

For Teachers 6th
Sixth graders investigate the concept of ratios and how they can be used to represent the comparison of quantities. The lesson is taught using a table or graph to compare two categories of data.
Worksheet
Curated OER

Proportion Problems

For Students 5th - 6th
In this proportion instructional activity, students use work space provided and state whether rations are proportional. Answers are included on page 2.
Worksheet
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Solving Problems Using Equivalent Ratios

For Students 7th - 12th
In this equivalent ratios worksheet, students solve word problems when given an equivalent ratio of the answer. Students complete 7 problems.
Lesson Plan
Curated OER

Dragonfly

For Teachers 7th Standards
The speed of a dragonfly brings math into the real world as your learners collaboratively see the value in calculating unit rates in direct proportion problems. This six-phase lesson encourages you, as the teacher, to only ask questions...
Lesson Plan
EngageNY

Families of Parallel Lines and the Circumference of the Earth

For Students 9th - 10th Standards
How do you fit a tape measure around the Earth? No need if you know a little geometry! Pupils begin by extending their understanding of the Side Splitter Theorem to a transversal cut by parallel lines. Once they identify the...
Activity
101 Questions

Nana's Paint Mixup

For Teachers 6th - 8th Standards
You would probably do anything for your Nana, including fixing her mistakes! Nana provided the wrong ratio to mix red and white paint, and she didn't realize it until after she mixed the paint. Your class now needs to figure out how to...
Lesson Plan
EngageNY

Linear Equations in Disguise

For Teachers 8th Standards
In the eighth segment of a 33-part unit, learners look at equations that do not appear to be linear at first glance. The equations are proportions where the numerators and denominators may have more than one term. To round out the...
Assessment
Balanced Assessment

At the Supermarket

For Students 6th - 8th
Grocery managers and chefs sure use lots of math. Scholars first use ratios and unit rates to determine a price for a can of corn. Once individuals have the pricing, they determine the amount of ingredients necessary to make brownies...
Lesson Plan
Curated OER

Ratio and Proportion

For Teachers 7th - 8th
Students investigate ratio and proportion.  In this middle school mathematics lesson plan, students write ratios and find equal ratios.  Students use ratio and proportion to distinguish between healthy and unhealthy body...
Worksheet
Curated OER

Ratio and Proportion: Write and Interpret

For Students 8th - 10th
In this ratio and proportion activity, students explore example problems. Afterwards, they read story problems and use ratios and proportions to find the solution. This three-page activity contains six multi-step problems,

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